Internal-combustion engine



A. DICKERSUN.

INTERNAL COMBUSTION ENGINE. APPLICATION FILED MAY 22. ms.

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JNVENTOR.

BY. a,z:

DECKERSON. HITERNM COMBUSTION ENGlNE.- APPLICATION FILED MA '22,.1918

Patented May 27, 1919.

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A TTOIxA EY A. DICKERSUN. INTERNAL COMBUSTION ENGINE.

APPLICATlON FILED MAY 22, I913. LEQQQYQQ; Patented May 27, 1919.

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HVV/f/V TOR. UQ @Cfiw ENT QFFliQE ARTHUR DICKERSDN, 0F SALT LAKE CITY,UTAH, ASSIGNOR, BY DIRECT AND MESNIE ASSXGNMIENTS, T0 DICKEBSON ENGINECOMPANY, A CORPORATION OF UTAH.

I NTEItNAL-COMIBUS'IION ENGINE.

Application filed May 22, 1918.

To all whom it may concern lie it known that I, Alrrunn Dlciucnson, acitizen of the United States, residing at Salt Lake City, in the countyof Salt Lake and State of Utah, have invented certain ings in whichsimilar letters and numerals of reilermice indicate like partsthroughout the several figures and as described in the specificationforming a part of this application and pointed out in the appendedclaims.

In. the drawings in which I have shown a substantial embodiment of myinvention Figure 1 is an end view in elevation of the engine, withpartsvshown in vertical section. Fig. 2 is a vertical longitudinalsection through the engine showing a portion of the inside of thecylinder case, one piston, and connection rod in elevation, and aportion of the valve case, one piston and per tions of the crank shaftin section. Fig. 3 a view in perspective of the valve case, val v: shaftand manifold with portions cut away. Fig. 4 is a plan view of the loweror bottom portion of the valve case. Fig. 5 is a transverse section ofthe same. F ig. 6 is an inverted plan view of the top or upper portionof the valve case. Fig. .7 is a trans verse section of the same. Fig. 8is an elevation of the valve shaft showing the relative position of theports therein some of which are shown in dotted lines. Fig. 9 is atransverse section of the valve case and valve showing the relativesizes of the ports. Fig. 10 is a view in transverse section showing thevalve shaft in the position when the ports are just opening to exhaust.

The engine shown has four cylinders, A, C and'iD, which are formed bybolting two coacting 1 and Qtogether within each of which are formedsemi cylindrical recesses or openings constituting one-half of the saidcylinders, A, B, C and D and one-- Specification of Letters Patent.

Patented May 27, Serial No. 236,031.

half of the crank case E. The crank shaft F is mounted in said crankcase E with. suit able bearings The outer side of each of said cylindersides 1 and 2 forms one or more of the walls of the water jacket G whichis formed by bolting the plates 4 on extended flanges of the sides 1 and2 and adjacent said cylinders A, B, C and D. A sprocket wheel is securedon one end portion of said crank shaft, and another sprocket wheel 6 issecured on the end portion of the valve shaft 7. A chain belt 8 connectsthe said crank shaft and valve shaft whereby the motion of said crankshaft is imparted to said valve shaft 7. Pistons are operated in therespective cylinders and connected with the said crank shaft F. Thevalve case ll is constructed by bolting four plates together and rigidlyupon the upper end of the cylinders A, B, (I and l) and as a closure.for said cylinders, and a bearing for said valve shaft 7. Two of saidplates, shown at 9 and 10 are semicylindrically recessed on theirabutting faces as at J to form the bearings for said valve shaft 7 andare also longitudinally recessed on their outer faces to form a waterjacket 13 for the valve shaft. The watcr jacket 13 is completed by theouter plates 11 and 12 when the said four plates arc bolted togethcrandin place on the said sides 1 and 2, and connected with the cylinderwater jacket (i by conduits lczuling from one to the other. lntake ports14- are provided to introduce the exploding gas to each cylinder byrecesses cut into and prim 'tially across" the contiguous faces of saidplates 9 and 10 preferably at right angles to the valve shaft recess Jand horizontally disposed. Exhaust ports 15 are likewise providedleading from said valve shaft rccess at right angles thereto andhorizontally disposed, to the opposed side of said valve case H. Ports16 are cut vertically through said plates 10 and 11 connecting saidvalve shaft recess J with the respective cylinders A, B C and D andarewider than ports 14 or 1-). Atubular intake casing 17 providedconnecting all of said intake ports 14 with the carburetor of theengine, which is not shown, to form the intake manifold, and on theopposite side ,of said valve casing H a similar casing 18 is providedconnecting all of said exhaust ports 15 to form the exhaust manifold. Anoil pipe 19 is Tilt) provided leading from the said crank case E to anOil case 20 which is secured on the top of the said plates 12, and oilconduits 21. are bored through the said plates 9 and 1? connectingsaidoil case 20 with the said valve shaft recess J for lubrication of thevalve shaft 7. The said conduits 21 are bored senii-spherical at theirlower end to form a sea t for ball valves 22 which are carried in saidconduits, said ball valves control the flow of oil from the said case 20to the valve shaft 7.

I thus provide a splash system of oiling for the crank shaft andconnections with impulses imparted to the oil carried in said crank caseto force some of said oil through the said pipe 19 and supply therequired oil in the said oil case 20. The commonly used spark plugs 2tare to he screved into open.- ings 25 leading to the interior of saidcylin ders near their top for firing the compressed in said cylinders bytheir respective pistons 23. The said valve shaft 7 is a solid metalshaft with portions thereof cut out to form the ports 26, one of whichis provided for each cylinder, and in longitudinal alineinent with thesaid ports '14-. i5 and 16 and adapted. to he brought into operativetransverse alincinent with two of said ports according to the rotationof said valve shaft and the particular cylinder to he fired. And to bemore specific: a segment of said shaft 7 is cut away for each cylinderof such portions of the shaft as will leave the ports 14 and 15 closedwhen the contiguous port 2% is parallel with the valve case ll. see Fig.ll. And when the said valve shaft is in operative position it will he inlongitudinal alinement with said ports i l. 15 and 16, and, with thecords of the segments so positioned relative to each other and the saidports 1+3, 15 and 16 as to bring a desired intake port ii and. itsadjacent port 16 into connection with one oi" said ports 2th to form anintake coruluit for that particin lar cylinder. while one of the otherof said ports 26 will he in connection with an exhaust port and itsadjacent port 16 to form an exhaust conduit for exploded gas) from oneof the other cylinders. and at the same time the other ports 26 will heclosed, that is, the uncut portion of said valve shaft will close theports l-l, 15 and 16 of the other cylinders. The object of cutting; outa segment of the sha ft to form the ports 26 rather than to form saidports entirely within the shaft is to provide less material in the shaftat that particular point to release the expansion oi that portion t theshaft which occurs when that portion of the shaft closes the said port16 at the instant of firing, as well as to receive the cooling elij'ect.when in the intake po i.

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therein is secured on said valve siaft 'i', and. a ll-shaped spring 29is secured to said plate 12. A roller 30 is journaled on the end of saidtl-shaped spring 29 to operate in said cam groove 28 whereby said valveshaft 7 made to reciprocate longitudinally. The said spring 28 allowingless reciprocation of the said shaft when the sha"; is made to rotaterapidly than when rotatingslowly.

"The operation of oily invention is follows:

With the parts of the engin in the p: sition shown in Fig. 2 the pi. tonin the cylinder A is ready to draw in the gas and the piston in thecylinder B is ready to err-- haust through the ports 16, 2t and 15,

when the crank shaft I is rotated. By firing the gas as described in oneof the other cylinders for instance D. the crank shaft wil l. he rotatedand cylinder A. will lied. with gas from the. intake maniii'old 17through the ports 1%, 26 and 16, while the exploded gas in cylinder Bwill be driven out. as the exhaust theretronn through. the exhaust manitold 18, and the gas in cylinder will be compressed. In the meantime thevalve shaft is losing rotated by the chains 8 and as the said ports 26are large main practically open until the respective pistons havetraveled practically their full throw and then they close quickly whichallows e flow of the gas and as the said crank shaft I is given. tworotations on its axis while the valve shaft '2 is rotated once, when thepiston in cylinder l) is moved downward by said explosion the pistons inii and C will he moved 'LZQWt "d, the cylirn der B to exhaust and thecylinder to compress a charge oi gas and instantly thereafter to tireit.

The collar 2! the can; groove 28 thcrearound when moved by an elementoperable in said groove will. cause said valve shall. 7 to reciprocatewhen is rotated, and my improvement is in providing a spring element asshown in the lit-shaped spring 29 with the roller 30 engaging in saidcam groove 28, whereby. when the said valve shaft slowly rotated itsreciproca; tions Will he the full. throw or said groove. but when saidshaft i rotated rapidly the said spring and cam will. yield relativelyone to the other as the rotations of said shaft are increased anddecreased, and by that means distribute the lulnricat-ion without theusual scoring of said shait't from lack of oil and wear. As said valveshaft is rotated the said ports 26 allow the said balls 22 to I'll? mainin their seats andv when the uncut portions or said valve shaft arebrought into engagement or contact with said balls they are raised outof their seats and oil will llow through the conduits 2i torlalnirutiugg;

enough to rctit) Construction for the crank case and water jacket forinternal combustion engines, cylinder for the same which maybe quicklyrepaired by shaving the contiguous faces of the sides forming thecylinders, together with a yieldingly reciprocating rotary valve thereonwith a case and eoacting ports by which expansion of the parts iseliminated, the passage and control of the gases is accurate, rapid andpositive, and all wearing parts of which may be oiled by novelluln'icating means.

Havingthus described my invention I desire to secure by Letters Patentand claim 1. An internal combustion engine consisting of duplicateplates bolted together and recessed to form spaced apart explosioncylinders and a crank case at one end of said cylinders; a crank shaftmounted in said crank case: pistons operable in said cylinders andconnected with said crank shaft; coacting recessed plates boltedtogether and to the end of said duplicate plates to form a closure forsaid cylinders, and provided with ports opening into said cylinders; ayieldingly reciprocating rotary valve shaft operable in one of therecesses in said second n'ientioned plates having segment portions cutaway to form ports adapted to enact with the ports in said plates; andmeans to conduct explosive gas to the ports in said. plates with meansto tire said gas When compressed in said cylinders.

[in internal combustion engine com prising a rotary valve shaft havingseg ment portions cut out to term ports therein; a casing tor said valveshaft having ports formed therein adapted to coact with. the ports insaid shaft; a collar having a cam groove cuttherein secured on saidvalve shaft; and a spring secured to said casing and a portion oi. whichis operatively con nected with said collar to dampen the action of thecam groove and shorten the endwise niovementsoi said valve shaft whensaid shaft is rapidly rotated and lengthen said. movements when saidshaft is rotated slower.

23. An internal combustion engine con sisting oil duplicate platesbolted together and recessed to form spaced apart explosion cylindersand a crank case at one end of said cylinders; a crank shaft mounted insaid crank case; pistons operable in said cylinders and connected withsaid crank shaift; coacting recessed plates bolted to gether and to theend oil duplicate plates to term aniosure for said cylinders; andprovided. with ports opening into said cylinders and oil conduits boredto form valve seats; a yieldin'gly reciprocating retarv valve shai'toperable in one of the recesses in said sectn'nl mentioned plates having segment portions cut away form ports adapted to coact with the portsin said plates, ball valves in said oil conduits to be operated by saidrotary valve shaft; means to conduct explosive gas to the ports in saidplates with means to fire said gas when compressed in said cylinders;and an oil pipe connecting each crank case with said oil conduits.

i. An internal combustion engine comprising a rotary valve shaft havingsegment portions cut out to form ports there in; a casing for said valveshaft having ports formed therein adapted to coact with the ports insaid shaft and oil conduits to term valve seats; ball valves adapted tooperate in said conduits by said valve shaft; a collar having a camgroove cut therein secured on said valve shaft, and a spring secured tosaid casing and a portion of which is operatively connected with saidcollar to dampen the action of said cam groove and shorten the endwisenioven-ients of said valve shaft when said shaft rapidly rotated andlengthen said movements when said shaft is rotated. slower.

5. An internal combustion engine consisting of duplicate plates boltedtogether and recessed to form spaced apartexplosion cylinders and acrank case at one end of said cylinders; a crank shaft mounted in saidcrank case; pistons ope able in said eylinders and connected with saidcrank shaft; coacting recessed plates bolted together and to the end ofsaid duplicate plates to form a closure for said cylinders, and providedwith ports, and with oil conduits opening into said cylinders; ballvalves operable in said conduits; a yieldingly reciprocating rotaryvalve shaft operable in one of the recesses in said second mentionedplates having segment portions cut away to form ports adapted to enactwith ports in said plates and operate said ball valves; and means toconduct explosive to the ports in said plates with means to fire saidwhen compressed in said cylinders.

6. An internal combustion engine. comprising a rotary valve shaft havingsegment portions cut out to form ports therein; a casing for said valveshaft having ports formed therein adapted to coact with the ports insaid shaft and oil conduits; ball valves in said oil conduits operatedby said rotary valve shaft; a collar having a cam groove cutthereinsecured on said valve shaft; and a spring securid to said casing with aportion operatively connected with said collar to dampen. the action ofsaid cam groove ainlshorten endwise movements of said. valve shaft whensaid shaft is rapidly rotated and lengthen. said movements when saidshaft is rotated slower.

7. [in internal combustion engine consisting of duplicate plates boltedtogether and recessed to Form spaced. apart explosion i re cylinders anda crank ease and an oil case at one end of said cylinders; a crank shaftmounted in said crank case; pistons operable in said cylinders and.connected with said crank shaft; coasting recessed plates boltedtogether and to the end of said duplicate plates to form s closure forsaid. cylinders, and provided Wi'l: ports opening into sairl cylindersand hm g oil conduits bored therein; ball valves in suirl oil conduit;21 yielclingly reciprocating rotary valve shaft operable in one of therecesses in said seoonrl mentioned. plates having segment portions cutaway to for-iii ports adapted to coact with the ports in said plates andoperate said ball valves; means to conduct plosive gas to the ports insaid plates with means to fire said when compressed in said cylinders;and an oil pipe said oil case and said oil. conduits.

8. An internal combustion engine conr prising a rotary valve casinghaving alined ports formed therein and a larger adjacent port at right,angles to said alined ports adapted to eoaot ii 1th the ports of, arotary valve journalorl in said casing; a yielilin gly reoiprooalinrotary valve with segment porlions euloul; in form, por is mlapi'ed tocoaot with. either of said alinecl ports anol its connecting adjacentrightangled porl; an oil casing 011 said 'valve easing with-oil conduitstherein and valves in said conduit, adapted to be operated by saidrotary valve shaft; a collar having a 021m groove outtherein secured onsaid valve shaft; and. a spring secured in said raising and a portion ofwhich operativoly connected with said collar to dampen the action ofsaid cam groove and shorten the endwise movements of said valve sl aftwhen said shaft is rapidly rotated and lengthen said movements when saidshaft is rotated slower, V

5). An internal combustion engine conr prising a rotary valve shafthaving ports therein for the pas-sa s of gas; a casing haw ing portsadapted to coast with the ports in the valve shaft; a cam forreciprocating the valve shaft; :1 spring in varial -lydampen the actionof, the cam; oil conduits with valve seats therein leaoing through the(res ing to the valve shaft in line with the ports ihercin; and valvesin the oil ronijluirs which are adapted to he lifted from lilieir seawhen the body of the valve shaft i": opposite the outlets of i'he oilconduits.

In testimony whereof I have afiixecl my signature.

ARTHUR- DICKERS N.

